Hello,

I have an intermittant cooling/heating problem in my 2.4 JTD Engine.
(Albeit in a FIAT - but it's the same as an Alfa engine)

Occasionally the temp rises higher than usual, and on inspection, the right
hand side (input) to the radiator is hot, but the Left side is cool.
A friend says he thinks it is the thermostat sticking closed  (but the hot
water wouldn't reach the rad then would it ?).
I lean towards a blocked radiator.
Squeezing the pipes on each end of the rad usually seems to clear it, and
the water starts circulating again coming out hot on the LHS.
The water in the expansion tank is still as clean as the day it was put in,
and no crud/rust in it.

Also, if it was the thermostat, where would I find it - A likely place seems
to be on the LHS of the engine almost opposite the battery ??

Thanks for your time.

Graham